Coleoptera Flashcards

Tenebrionidae
- Tarsi 5-5-4
- Front coxal cavities closed behind**
- Eyes usually notched
- Antenna 11 segmented, filiform
-
Alleculinae (now subfamily of Tenebrionidae)
- Tarsal claws pectinate (comb-like)

Elateridae
- Elongate, hard bodied, and tapered
- Prosternum with spine fitting into groove on mesosternum

Gyrinidae
- Two pairs of compound eyes
- Swimming legs are short

Cupedidae (Demo)
- Elytra reticulate
- Tarsi 5-5-5
- Prosternum extending as process fitting into groove of mesosternum (like elaterid click beetles)
- One of two families in the primitive suborder Archostemmata (=old eyes)
- Distinctive compound eyes
- 5 spp. occur in North America (one in MS)

Hemerobiidae
- Many costal veins forked, brown

Cerambycidae
- Hind tarsi appearing 4 segmented with 3rd segment bi-lobed
- Atennae long
Pyrochroidae
- Flat larvae are commonly found nder bark
- adults rarely seen

How many species of Harmonia occur in the US?
3
Book: American Beetles - Volume II
Arnett, Thomas, Skelley, and Frank

Berothidae“Beaded Lacewings”
- Forewings falcate (notched below apex)

Passalidae
- Similar in size and shape to Lucanidae, but elytra grooved
- Mandibles smaller

Exarate pupae:
- Appendages are free and not glued to the body, usually without cocoon, but often a cell made from dirt or debris.
- Present in all holometabolous orders, but only in primitive Lepidoptera.
- In higher Diptera (house flies), exarate pupa is enclosed within the last larval instar skin (forming a puparium or coarctate pupa)

Meloidae
- Elytra soft
- Body elongate, often cylindrical
- Pronotum narrower than head and mesonotum/abdomen
- Protonum rounded

Nitidulidae
- Clubbed antenna
- Elytra sometimes shortened to expose abdominal terga
- Body flattened, pronotum usually with “RIM”
Neuroptera
- Many cross veins and forked veins, especially at wing margin
- Various Neuroptera
- [Nemoptera (Nemopteridae)] - modified hindwings
- Only genus in the family, occurring in the Paleartic and Ethiopian Regions
- Adults are diurnal and visit flowers
- [Nemoptera (Nemopteridae)] - modified hindwings

Carabidae larva
- larva lives in the vertical burrow in soil
- Modifications does the larval body have for living in a burrow?
- Hump = protuberance with spines

Carabidae
- Trochanter “bean” shaped
- Head narrower than pronotum
- Elytra with longitudinal grooves or rows of punctures
Book: Biology of Coleoptera
Crowson
Megaloptera
Wings are large, without network of veins

Chrysomelidae
- Hind tarsi appearing 4 segmented with 3rd segment bi-lobed
- Antenna short

Cantharidae
- Soft elytra
- Head visible from above

Laemophloeidae
- Flat, small, brown
- Cucujidae has a large flat red species in MS

Corydalidae
- Megaloptera Order
- Large in size
- Ocelli present

Dilaridae“Pleasing lacewings”
- Small, moth-like
- Male: pectinate antenna (comb-like)
- Female: Long ovipositor
- 2 spp. in North America (both rare)
- Little is known of their habits

Curculionidae
- Snout with antenna arising near middle
- Antenna elbowed

Cleridae
- Pronotum narrower than base of elytra, usually rounded
- Clubbed atenna
- Often checkered with red and yellow and with hairy body
Campodeiform
- body form that resembles Campodeidae (diplura)
- long body and appendages
- antennae and cerci well developed
- head usually prognathous (projecting forward)
- Larvae active and predatory
- Neuroptera and Coleoptera
- Carabidae and Staphylinidae

Mordellidae
- Wedge-shaped body
- Abdomen pointed and extending beyond elytra

Buprestidae
- Hard, compact bodies with characteristic tapered shape
Obtect pupae:
- Charateristic of most Lepidoptera and some primitive Diptera (mosquitoes)

Myrmeleontidae
- Antenna clubbed, relatively short
Suborder Adephaga
- 1st abdominal segment divided
- Posterior margin of sternum not extending completely across abdomen, but interrupted by hind coxae
- Trochanters of hind legs are large and extending to one side of leg midline
- (Adephaga also has filiform antennae, notopleural sutures, and 5-5-5 tarsi)

Lycidae
- Soft eltyra with network of longitudinal and transverse ridges

Chrysopidae
- Costal veins not forked, green

Coccinellidae
- Round oval, convex, usually with spots
- Tarsi 3-3-3

Silphidae (Nicrophorus americana)
- Endangered American burying beetle (almost extinct)
- Only a few populations are known to exist in the US
- Last collected in MS in 1940s

Ptiliidae“feather-winged beetles”
- Small size (smallest beetles known)
- Hind wings feather-like, often extending beyond elytra
- Feed mainly on fungal spores

Haliplidae
- Hind Coxae large, covering most of abdomen (Coxal plate)
Suborder Polyphaga
- 1st abdominal segment not divided by hind coxae
- Hind trochanters usually
Psephenidae larvae
- Waterpennies
- Occur on stones and other objects in fast flowing streams
3.

Raphidioptera (raf-e-de-optera) “Snakeflies”
- Elongated pronotum
- Prosterior attachment of the prolegs on the prothorax
- Female - long ovipositor for laying eggs in crevices of barks
- Only occurs in western North America

Sisyridae“Spongillaflies”
- Costal veins not forked
- Brown or mottled with yellow
- Small
- 3 spp. occur in MS
- Collect at lights
- Larvae predaceous on fresh sponges

Scolytinae
- Small and cylindrical bodies
- Antenna geniculate (elbowed) and clubbed

Raphidioptera (raf-e-de-optera) “Snakeflies”
- Elongated pronotum
- Prosterior attachment of the prolegs on the prothorax
- Male
- Only occurs in western North America
O’Brien and Wibner - Weevils of North America
Example of “annotated checklist”
What is included in the “annotations”
- States of distribution
- [] gives additional information

Lucanidae
- Large body
- Mandibles very large
- Smooth elytra
- Differ from Scarabaeidae in that segments of antennal club do not fit tightly together

Scarabaeidae
- Heavy bodied (robust)
- Antennae lamellate (last three segments of club can be spread apart)
- Outer edge of front tibiae toothed and scalloped

Staphylinidae
- Short elytra, usually 5 or more abdominal segments exposed

What family includes Harmonia?
Coccinellidae
Scarabaeiform
- grublike, usually curved body, head well developed
- usually with thoracic legs (absent in Curculiondiae)
- Scarabaeidae and Hymenoptera

Cicindelinae
- Trochanter “bean” shaped
- Head broader than pronotum
- All have characteristic body, robust and long cursorial legs

Lampyridae
- Soft elytra
- Head not visible from above
- End of abdomen with light organ

Hydrophilidae
- Antenna short and clubbed
- 3-segmented maxillary palpus is long
- Many species with spine on metasternum

Ascalaphidae
- Antenna clubbed, relatively long

Bostrichidae
- Long, cylindrical bodies
- Head bent down and scarcely visible from above
- Antenna with segments of club separated

Erotylidae
- Oval or elongate-oval bodies
- Tarsi usually with 5 segments
- Often patterned with red or orange on black

Heteroceridae
- Similar to small scarabs, but front and middle tibiae spiny for modified for burrowing
- Body shape characteristic
- Color blackish or brown with dull yellow spots


Ips: nuptial chamber in the middle with usually 4 egg galleries cut going away from the NC
Dendroctonus: galleries are all over the place

Dytiscidae
- Hind legs flattened and fringed with hairs for swimming
Hickory bark beetle: Scolytus quotrispinosus

Elateriform
- Wireworm
- Body long, cylindrical, and heavily sclerotized with short legs and few setae
- Elateridae
- Tenebrionidae

Sialidae
- Megaloptera order
- Small in size
- Ocelli absent
Who are the authors of the reference that provides keys to species of Harmonia?
Gordon and Vandenberg (1991)

Brentidae“Sweet Potato Weevil” [Cyclas formicarius]
- Primitive weevils
- Relative of Curculionidae includes species of wood-boring larvae
- Most serious pest of Sweet Potatoes in the US and other countries
Micromalthidae
“Bank vault beetle”
- Also in Archostemmata

Mantispidae
- prolegs raptorial, from front of pronotum
Book: American Beetles - Volume I
Arnett and Thomas
- Provides indetification keys, distrubutions, and basic information on all genera of beetles in the US

Brentidae (Demo)
- Snout straight, projecting in front of head
- Reddish in color

Dermestidae
- Round, oval shape
- Antenna clubbed
- Body covered by many hairs or scales